baber/WOPTO huggingface dataset:
Patent KR-20170082801-A (KR)
Inventor: JEONG SEONG IL
IPC: F16C35/06
Filed: 2016-01-07
Abstract: 본 발명은 스핀들용 베어링의 가변예압장치에 관한 것으로서, 더욱 상세하게는 고속으로 회전이 가능한 스핀들의 외부에 결합되어 있는 베어링을 예압할 수 있도록 베어링하우징을 전반부 베어링과 후반부 베어링 사이에 결합하고, 상기 베어링하우징을 피스톤의 작동에 의해 후반부 베어링을 가압할 수 있도록 설치하며, 상기 피스톤을 유체 또는 압축공기로 가압함으로써 후반부 베어링에 가해주는 예압을 필요에 따라 조절할 수 있는 스핀들용 베어링의 가변예압장치이다.
Patent KR-20170083194-A (KR)
Title: 혼잡제어 기능을 구비한 센서 네트워크
Inventor: KIM BONG SOO
IPC: H04W28/02
Filed: 2016-01-07
Abstract: 본 발명은 센서 네트워크의 혼잡 제어에 관한 것이다. 본 발명의 일 실시예에 따르면, 혼잡회피 응답 신호에 따라 인접 라우터로 전송 경로를 변경하는 말단 디바이스 및 혼잡도에 따라 전송 경로를 변경하기 위해 상기 말단 디바이스를 분류하고, 상기 혼잡도가 미리 결정된 혼잡도 이상이면 상기 혼잡회피 응답 신호를 상기 말단 디바이스로 전송하는 라우터를 포함하는 센서 네트워크가 제공된다.
Patent KR-20160098042-A (KR)
Title: Digital housing right trading system using exchange and method thereo0f
Inventor: KIM BYUNG CHUN
IPC: G06Q50/16
Filed: 2016-01-29
Abstract: The present invention relates to a system and a method for trading a residential right using an exchange, and more specifically, to a system and a method for trading a residential right, wherein an exchange matches a selling condition and a buying condition for a residential right when a seller and a buyer posts the selling condition and the buying condition on a homepage of the exchange to accomplish a transaction and perform calculation and transfer according to a residential right transaction. According to an embodiment of the present invention, the system for trading a residential right using an exchange comprises: a seller terminal to input a selling condition including an asking price for sale for a selling residential right on a homepage of an exchange server; a buyer terminal to input a buying condition including an asking price for buying for a buying residential right on the homepage of the exchange server; the exchange server to supply information of a house whose residential right is to be sold or bought to the seller terminal and the buyer terminal, and match the selling condition and the buying condition to establish a transaction if the selling condition and the buying condition are matched, and perform calculation and transfer for a transaction price of the residential right; and a financial institution server to issue a certificate to the seller terminal and the buyer terminal if the seller and the buyer open financial accounts.
Patent KR-20170091279-A (KR)
Title: An eco-friendly grass block with wide planted area
Inventor: KANG KYUNG HO
IPC: A01G9/10
Filed: 2016-02-01
Abstract: The present invention provides an environmentally-friendly grass block having a wide planting area. Partition wall parts having a predetermined shape and height are formed at regular intervals, and planting parts are formed in one direction between the partition wall parts. Drainage grooves are formed at regular intervals on the floors of the planting parts. Thus, a planting area on which a plant such as grass and the like can be planted can be maximally ensured, and an environmentally-friendly product condition is satisfied. The environmentally-friendly grass block is installed on a parking lot, a park, a slope surface, or the like. Thus, a beautiful outer appearance is ensured, and an afforesting area is increased. Also, driving properties can be improved. The environmentally-friendly grass block according to the present invention comprises: a plate-shaped body part having a plane cross-section which is a rectangular shape; partition wall parts protruding on the top surface of the body part, formed at regular intervals, and formed in one direction to have a predetermined continuous shape and height; planting parts formed in one direction between the partition wall parts; and drainage grooves formed at regular intervals on the body part which is a floor surface of the planting parts.
Patent KR-20170091839-A (KR)
Title: 학교 생활 정보 제공 장치 및 방법
Inventor: LEE JAE RYEOL
IPC: H04W88/02
Filed: 2016-02-01
Abstract: 본 발명은 사용자로부터 단어 또는 문장을 입력받거나 정보를 출력하는 단말기; 및 인터넷망 또는 이동통신망을 통하여 상기 단말기로부터 입력된 단어 또는 문장을 전송받고, 상기 입력된 단어 또는 문장에 따라 데이터베이스로부터 그에 대응하는 학교 생활 정보를 검색하여, 상기 학교 생활 정보를 상기 단말기로 전송하는 대화형 서버를 포함하고, 상기 대화형 서버는 상기 입력된 단어 또는 문장에 포함된 하나 이상의 특정 단어를 선택하고, 상기 하나 이상의 특정 단어와 매칭되는 상기 학교 생활 정보를 상기 데이터베이스로부터 검색하여 추출하는 것을 특징으로 한다.
Patent KR-20170091483-A (KR)
Title: Apparatus for spraying chemicals using pipes
Inventor: KWON YUNG
IPC: A01M7/00
Filed: 2016-02-01
Abstract: Disclosed is a drug spray device using a pipe. More specifically, provided is a drug spray device which sprays drugs contained in a pipe using compressed air. According to an embodiment of the present invention, the drug spray device using the pipe comprises: a pipe containing liquid drugs therein and spraying the drugs mixed with compressed air introduced therein to the outside through at least one spray hole formed on a surface; and a pressurizer connected to one end of the pipe and introducing the compressed air into the pipe.
Patent KR-20160102343-A (KR)
Inventor: HASEGAWA TAKAHIRO
IPC: B60J5/04
Filed: 2016-02-16
Abstract: Provided is a load transmission member which facilitates installation work of a panel member. A load transmission member (30) includes an outside load transmission member (32) attached to one face (26A) of a panel member [inner panel (26)]; an inside load transmission member (34) attached to a position corresponding to the outside load transmission member (32) at the other face (26B) of the panel member, wherein a load is transmitted through the panel member from the outside load transmission member (32) to the inside load transmission member (34), and a temporary attachment means [rake portion (42) and protruding portion (44, 46)] installed on at least one side of the outside load transmission member (32) and the inside load transmission member (34) for temporarily attaching an object to the panel member.
Patent KR-20170096727-A (KR)
Title: A Treatment System of Gas
Inventor: LEE JIN KWANG
IPC: B63B25/16
Filed: 2016-02-17
Abstract: The present invention relates to a gas treatment system, comprising: an evaporation gas supply line for supplying evaporation gas generated in a liquefied gas storage tank after being multi-stage pressed by an evaporation gas compressor to a demand; an evaporation gas return line for returning the multi-stage pressed evaporation gas branched from the evaporation gas supply line after being reliquefied to the liquefied gas storage tank; an evaporation gas heat exchanger for heat exchanging the multi-stage pressed evaporation gas flowing in the evaporation gas return line with evaporation gas flowing in the evaporation gas supply line; and a turbo charger for compressing the evaporation gas in the evaporation gas supply line by using power generated by the evaporation gas in the evaporation gas return line as a driving source.
Patent KR-20170102137-A (KR)
Title: Apparatus for manufacturing the gas adsorption membrane possessed of structure of textile using ZIF-7 and method for controlling the same
Inventor: YOON SUK GOO
IPC: B01D53/22
Filed: 2016-02-29
Abstract: Provided by the present invention are: a metal-organic frameworks (MOFs) mat which is manufactured in a fabric shape through line patterning large area technology and is manufactured by being chemically and mechanically stabilized through plasma treatment technology which is second technology; and a manufacturing method thereof. The MOFs mat not only improves performance of single fabric through the plasma treatment of a fabric surface simultaneously with a fiber spinning but also is manufactured by a one-step process in a fabric shape manufacturing method through a line patterning through steps of the manufacture of line patterning large area equipment and the setting of plasma treatment optimum conditions. To achieve the above purpose, MOFs are a new organic-inorganic hybrid material having a three-dimensional crystalline structure by continuously combining organic ligands and metal ions or clusters in a crystal lattice. The MOFs have a large specific surface area and can form pores having a functional structure as well as control the size and shape of the pores according to types of metal ions and organic ligands used in synthesis. The present invention is provided to manufacture a large area mat by the provided method capable of improving the performance limitation and durability of existing MOFs mats.
Patent KR-20170103244-A (KR)
Inventor: LEE YOON DONG
IPC: G06N7/00
Filed: 2016-03-03
Abstract: 본 발명의 일 실시예는, 후보자들이 2인인지 여부를 판단하는 단계; 상기 후보자들이 2인인 경우, 출구 조사 결과 및 실시간 개표 결과를 이용하여 상기 후보자들 각 1인의 일대일 승리 확률을 산출하는 단계; 상기 후보자들이 3인 이상인 경우, 상기 후보자들 각 1인의 나머지에 대한 상대 일대다 승리 확률을 산출하는 단계; 및 상기 후보자들이 3인 이상인 경우, 상기 후보자들 각 1인의 상대 일대다 승리 확률을 정규화하여, 상기 후보자들 각 1인의 최종 일대다 승리 확률을 산출하는 단계;를 포함하는, 개표 진행 과정에서 실시간 당선 확률의 오류 가능성을 줄이기 위한 방법을 개시한다.
Patent KR-20170104272-A (KR)
Inventor: CHOI HAN YOUNG
IPC: G03F7/004
Filed: 2016-03-07
Abstract: The present invention relates to a composition for a hard mask, and more particularly, to a composition for a hard mask which exhibits excellent heat resistance without deteriorating optical properties and mechanical properties by containing compounds and solvents represented by specific chemical formulas. Additionally, the composition can form a resist underlayer film (hard mask) which simultaneously satisfies the gap-fill characteristics required in the front-end-of-the-line (FEOL) field.
Patent KR-20170104774-A (KR)
Title: Display device
Inventor: KIM HYUN SUK
IPC: H01L51/52
Filed: 2016-03-08
Abstract: The present invention relates to a display apparatus, which reduces reflection of external light to improve a contrast ratio. The display apparatus can be applied to various display apparatuses including a self-emitting OLED, a non-self-emitting LCD, and a flexible display apparatus.
Patent KR-20170106539-A (KR)
Title: Pac 처리 폐수 슬러지에서 인을 회수하고 슬러지를 용해하는 방법
Inventor: KIM DONG JIN
IPC: C02F101/10
Filed: 2016-03-10
Abstract: 해결하려는 과제: 폐수 슬러지로부터 효율적인 방법으로 인 회수율을 높이려는 것. 
해결수단: 산 및/또는 알칼리를 이용하여 PAC (polyaluminium chlorides) 처리된 폐수 슬러지로부터 인을 침출하는 효과적인 방법을 발명하였다. 슬러지 분석 결과, NAIP가 총인의 90.9%였고, AP는 3.7%였다. 1N NaOH 또는 2N HCl로 두 시간 처리한 후 각각 총인의 80.5% 및 77.9%가 침출된 반면, 슬러지 용해율은 각각 72.7% 및 75.6%였다. HCl과 NaOH의 동역학 연구 결과, 인 분리의 속도상수는 HCl과 NaOH에 대하여 각각 0.50 및 0.35min -1 이었고, PAC 처리 슬러지의 용해속도상수는 HCl과 NaOH에 대하여 각각 0.47 × 10 -2  및 0.15 × 10 -2  min -1 이었다. NaOH 처리 이후 HCl로 추출하는 경우 (NaOH/HCl), 인 분리는 총인의 91.7%에 달하였다.
Patent KR-20170106744-A (KR)
Title: Fan motor driving apparatus and air conditioner including the same
Inventor: LEE HAK RAE
IPC: F24F11/00
Filed: 2016-03-14
Abstract: The present invention relates to a fan motor driving apparatus and an air conditioner including the same. According to an embodiment of the present invention, a fan motor driving apparatus comprises: a capacitor connected to a DC end; an inverter having a plurality of switching devices and driving a fan motor by converting DC power of the capacitor into AC power; a location detection portion for detecting a location of a rotor of a motor; and a control portion for outputting a switching control signal which is for converting the inverter based on the location detection signal obtained from the location detection portion. The control portion accelerates the motor up to a target speed to drive the motor. When the motor is accelerated, the acceleration is set to be smaller than a first acceleration which generates a hunting phenomenon when the target speed is reached, and is set to be greater than a second acceleration which generates restraining force against the motor. Accordingly, a possibility of restraining the fan motor can be reduced.
Patent KR-20160113015-A (KR)
Title: 애벌레 속성배양 시스템
Inventor: JANG MYUNG JIN
IPC: F21S10/02
Filed: 2016-03-17
Abstract: 본 발명은 애벌레의 성장단계(알-1령-2령-3령-번데기-성충)에 따라 산소의 농도를 조절하여 공급하는 산소공급조절수단; 애벌레 사육장 내부로 미세전류를 공급하는 미세전류발생수단; 및 산소공급조절수단을 통해 공급되는 산소의 농도에 따라 애벌레 사육장 내부로 조사되는 조명의 색상을 변경시키는 조명변경수단을 포함하는 애벌레 속성배양 시스템에 관한 것으로서, 특히, 곤충의 애벌레를 배양하는 과정에 있어 단기간에 애벌레의 크기를 임의로 키울 수 있도록 구성한 애벌레 속성배양 시스템에 관한 것이다.
Patent KR-20170113811-A (KR)
Inventor: YOU JUN WOO
IPC: G02F1/1335
Filed: 2016-03-25
Abstract: 표시장치는 표시패널과 백라이트 유닛을 포함한다. 백라이트 유닛은 소정의 파장범위의 광을 방출하는 광원부, 광원부로부터 방출된 광의 파장범위를 변환하는 광변환부 및 광변환부로부터 변환된 광을 표시패널로 가이드하는 도광판을 포함한다. 광변환부는, 소정의 파장범위의 광을 변환하는 형광체들 및 양자점들을 포함한다. 백라이트 유닛의 동작모드에 따라 변환된 광은 형광체들로부터 변환된 광의 비율이 양자점들로부터 변환된 광의 비율보다 높거나 낮을 수 있다.
Patent KR-20170115908-A (KR)
Title: 전자식 기폭 장치를 이용한 구명튜브 모듈
Inventor: CHOI CHANG MO
IPC: B63C9/08
Filed: 2016-04-09
Abstract: 본 발명은 도 1과 같이 팽창장치와 구명튜브를 하나의 케이스안에 내장하고 있는 구명튜브모듈에 관한것으로서 무선조정이 가능한 드론에 다수의 모듈을 장착하는 방법으로 부풀려진 구명튜브로 인한 무선 조정드론의 비행 불안전성을 개선하고 모듈형태로 지금보다 많은 수의 구명튜브를 창작하여 많은 수의 익수자 구조 및 익수자의 구조확률을 획기적으로 높일 수 있다.
Patent KR-20170117719-A (KR)
Title: 생산성과 살균활성이 향상된 이산화염소 기체 발생장치
Inventor: RYU JEE HOON
IPC: B01J12/00
Filed: 2016-04-14
Abstract: 본 발명은 생산성과 살균활성이 향상된 이산화염소 기체 발생장치에 관한 것이다. 본 발명은 산 또는 아염소산/염소산 용액 미립자를 직접 반응시킴으로써 이산화염소 기체의 생산 수율을 높일 수 있고, 생산량 및 생산 시점을 효과적으로 조절할 수 있다. 또한, 고농도로 직접 반응시킬 수 있는 반응 챔버와 미립자 상태의 용액을 사용함으로써 이산화염소 기체의 생산 수율을 보다 증진시킬 수 있을 뿐만 아니라, 장치 내부의 상대습도를 단시간 내에 높여 생성된 이산화염소 기체의 살균 효과를 현저하게 향상시킬 수 있다.
Patent KR-20170117830-A (KR)
Title: 실리콘 고무 조성물
Inventor: JIN SUNG HOON
IPC: C08L83/04
Filed: 2016-04-14
Abstract: 본 발명은 실리콘 고무 조성물, 실리콘 고무 성형품 제조방법 및 실리콘 고무 성형품에 관한 것이다. 한 구체예에서 상기 실리콘 고무 조성물은 폴리오르가노실록산; 실리카; 폴리메틸실세스퀴옥산; 및 가교제;를 포함한다.
Patent KR-20170021193-A (KR)
Inventor: NAM KEE SOO
IPC: G03F1/48
Filed: 2016-04-26
Abstract: Disclosed is a production method of a phase inversion blankmask. The blankmask has a phase inversion film on a transparent substrate, and the phase inversion film is formed by chemical vapor deposition (CVD). Accordingly, the phase inversion blankmask having a high transmittance phase inversion film more thinned by increasing the refractive index of the phase inversion film through increasing the silicon (Si) content can be produced.
Patent KR-20170121890-A (KR)
Inventor: KIM NAM JU
IPC: A61N5/06
Filed: 2016-04-26
Abstract: The present invention relates to an ultraviolet LED irradiation apparatus, and more particularly, to an apparatus for inducing a synthesis of vitamin D in a body by irradiating a light to a palm or a sole with less melanin pigment of a human by using an ultraviolet LED having an UV-B wavelength. According to the present invention, an ultraviolet light emitting part uses an LED light emitting element having a wavelength of 315 to 280 nm; a pulse measuring part is equipped with a pulse measuring sensor with a function to measure a pulse, a stress index and an oxygen saturation by means of a body contact wherein the sensor is equipped with a function to transmit the measured value wirelessly or to a wireless transmission device; and a body fat measuring part is equipped with a sensor capable of measuring a body fat to measure a body fat by means of a body contact, and to transmit the measured value wirelessly or to a wireless transmission device. According to the present invention, a synthesis of vitamin D in a body can be facilitated regardless of time and spatial constrains indoors without a sunlight, in a winter season with a low solar radiation, and even in a region of a longitude of 35 degrees north or higher.
Patent KR-20170022857-A (KR)
Title: System and method for operating electronic vote, and recording medium thereof
Inventor: RYU HO CHEOL
IPC: H04L9/32
Filed: 2016-04-26
Abstract: The present invention relates to an electronic vote operating system having improved security and a method thereof. According to the present invention, an operating method of a security key is improved wherein the security key encodes and decodes vote information to preclude leakage and fabrication of the vote information and enable verification in case of a dispute, thereby fundamentally preventing a proxy vote by a third party.
Patent KR-20170122527-A (KR)
Inventor: KIM SUNG JOONG
IPC: G09G3/3233
Filed: 2016-04-27
Abstract: Embodiments of the present invention relate to a response technology on a disconnection generated in a display panel. More specifically, the present invention relates to a controller, a driver, an organic light emitting device, and a driving method thereof which can reduce a sensing error or a compensation error by connecting an artificial leakage resistance to a sensing line used for sensing a feature value of a subpixel so as to allow the certain amount of leakage current to flow. According to embodiments of the present invention, although a sensing error occurs in a sensing process since a disconnection between the sensing line and a peripheral signal line positioned around the sensing line is generated, an effect by the disconnection is reduced, and compensation on the feature value of the subpixel is normally performed, thereby preventing a screen abnormality phenomenon.
Patent KR-20170082107-A (KR)
Inventor: CHOI JONG VUM
IPC: G08B5/36
Filed: 2016-05-02
Abstract: 지장물 검지를 위한 송신 모듈 및 수신 모듈이 개시된다. 예시적인 실시예에 따른 송신 모듈은, 선로 내의 지장물 여부를 검지하기 위한 송신 모듈로서, 선로 인근에 설치되는 지장물 검지망의 단선 여부 확인을 위한 검지 주파수 신호를 발진하는 발진부 및 검지 주파수 신호의 노이즈를 제거하는 적어도 하나의 필터부를 포함하고, 발진부는, 지장물 검지망의 1선용 검지 주파수 신호를 발진하는 제1 발진부, 지장물 검지망의 2선용 검지 주파수 신호를 발진하는 제2 발진부, 및 1선용 검지 주파수 신호 및 2선용 검지 주파수 신호 중 어느 하나를 선택적으로 발진하도록 하는 스위치부를 포함한다.
Patent KR-20170124715-A (KR)
Inventor: KIM JONG IL
IPC: H01L51/00
Filed: 2016-05-03
Abstract: According to the present invention, disclosed is a foldable display device for improving the screen visibility of a boundary part between displays by the overlap of adjacent parts of the displays. The foldable display device includes: a first body part which includes a first display; and a second body part which includes a second display. The first and second displays face outward in a first position where the first and second body parts are folded. The adjacent parts of the first and second displays overlap with each other in a second position where the first and second body parts are unfolded.
Patent KR-20170035763-A (KR)
Inventor: ZHAO XIAOWEN
IPC: G16H10/60
Filed: 2016-05-10
Abstract: The present invention provides a method and a system for constructing a suture material for a tissue or organ defective part. The method comprises the steps of: obtaining a tissue defective position of a patient; collecting initial image data in the tissue defective position of the patient, restoring an initial 3-dimensional image in the tissue defective position and a 3-dimensinoal image in a defective part corresponding to the defective position, and generating and storing a 3-diemnsinoal model of the defective part to be sutured; performing simulation matching according to the defective part to be sutured and a model after tissue defection; and obtaining a 3-dimensional model in the defective part to be sutured, outputting a 3-dimensinoal model in the defective part to be sutured, and generating an actual model of a suture material. According to the present invention, according to the structural features of defective tissue, a defective part to be sutured is planned, designed, and formed to be matched with a conventional bio-structure. The defective part to be sutured is outputted through a 3D printer, and is used in filling and repairing a defective part. Thus, an overall tissue structure can be perfectly reproduced, and a perfect state before defection can be ensured. Also, an optional complicated defected part having a large volume or a large area can be individually repaired.
Patent KR-20170130734-A (KR)
Inventor: KIM MYUN SOO
IPC: E04B1/41
Filed: 2016-05-19
Abstract: According to one embodiment of the present invention, provided is a fastening bracket, comprising: a first shaped steel fastening unit having a fastening hole where a fastening member is coupled and coming in contact with an upper surface of first shaped steel; and a second shaped steel fastening unit bent from the first shaped steel fastening unit to come in contact with one side surface of second shaped steel and having a fastening pin protruding from the outer surface thereof.
Patent KR-20170052441-A (KR)
Title: Centralized distributed systems and methods for managing operations
Inventor: TSENG DERRICK
IPC: G06F12/02
Filed: 2016-05-31
Abstract: The present invention relates to a system including a server, in which a maintenance operation has a little effect on the performance degradation. The server is coupled to a plurality of nodes, selects one of the nodes to perform the maintenance operation, instructs the selected node to perform the maintenance operation, and responds to access requests based on the selected node. The maintenance operation performed by the selected node decreases the performance of the selected node.
Patent KR-20170136160-A (KR)
Inventor: NOH SUNG RYUL
IPC: G06Q50/20
Filed: 2016-06-01
Abstract: According to the present invention, a system to evaluate the engagement of a viewer by measuring concentration and participation in real-time content viewing includes: a viewer terminal (100) including an image input part (110) receiving image data made by photographing the content viewing appearance of a viewer (A), an object extracting part (120) extracting the viewer (A) from the image of the image data as an object by analyzing the image, a pupil extracting part (130) extracting pupils from the face of the object, a gaze direction extracting part (140) extracting the gaze direction in which the face of the object is looking, and a motion extracting part (150) extracting the motion or facial motion of the object; and a main server (200) calculating a participation measurement value reflecting the eye opening state and existence of the viewer (A) by using data values of the pupil extracting part (130) and the object extracting part (120) of the viewer terminal (100), calculating a concentration measurement value that reflects the distracting motions and screen gazing state of the viewer by using data values of the motion extracting part (150) and the gaze direction extracting part (140), and calculating a content engagement index (CEI) of the viewer by integrating the participation measurement value and the concentration measurement value.
Patent KR-20170139257-A (KR)
Inventor: IN CHI HYUN
IPC: B63J2/12
Filed: 2016-06-09
Abstract: The present invention relates to a drain trap installed on an upper portion surface of a structure so that a level of fluid filled in the upper portion surface can be adjusted. The drain trap comprises: a housing installed in a drainage port and connected to a drainage pipe at a lower side thereof; and a cover portion covering an upper portion of the housing, and including a first protrusion portion forming a dividing wall protruded to an upper portion thereof to surround a first drainage hole, and a second protrusion portion forming a dividing wall protruded to the upper portion thereof to surround a second drainage hole, wherein the second protrusion portion is formed to be higher than the first protrusion portion, and the first drainage hole can be opened and closed.
Patent KR-20170013154-A (KR)
Title: Semiconductor device and METHOD of encapsulating semiconductor die
Inventor: CHINNUSAMY SATYAMOORTHI
IPC: H01L21/762
Filed: 2016-06-13
Abstract: A semiconductor device includes a semiconductor wafer. The semiconductor wafer includes a plurality of semiconductor dies. An insulating layer is formed on an active surface of the semiconductor dies. A trench is formed in an inactive area of the semiconductor wafer between the semiconductor dies. The trench is partially extended through the semiconductor wafer. A carrier with an adhesive layer is provided. The semiconductor dies are placed as a single unit on the adhesive layer and the carrier. As back-grinding work is performed to remove a part of the semiconductor wafer and expose the trench. The adhesive layer holds the semiconductor dies in their positions during the back-grinding work. A sealant is deposited on the semiconductor dies and in the trench. The carrier and the adhesive layer are removed. The encapsulated semiconductor dies are washed and singulated into an individual semiconductor device. The electrical performance and function of the semiconductor device are tested.